太阳能与土壤源互补特性的实验研究

基于太阳能与土壤源的互补特性，建立了兼具实验研究和示范使用两种功能的太阳能-土壤源复合热泵系统。利用初步的实验运行结果，分析了跨季蓄热和即时采暖过程中太阳能与土壤源的互补情况。结果表明，蓄热结束时，埋管井和观测井不但恢复了初始平均温度，而且还分别比初始平均温度超出了0.73℃和0.8℃。在土壤源的配合或保证下，冬季太阳能产生的不同温度层次的热量完全可以即时利用于采暖，避免了太阳能的不稳定性，减轻了土壤源的取热负担，也体现了比较明显的节能效果。

Experimental Research of Complementary Characteristics of Solar Energy and Ground Source

Based on the complementary characteristics of solar energy and ground source, the solar-ground source compound heat pump system with two functions, namely experimental research and demon-stration to using, was established. The complementary characteristics of solar energy and ground source in the process of heat storage across different seasons and instant heating were analyzed through the prelimi-nary experimental results. Results show that buried tube wells and observation wells restored to the original average temperature;besides, the temperature exceeded 0.73 ℃ and 0.8 ℃ respectively comparing with the initial average temperature at the end of the heat storage. Assisting and assuring with the ground source, in winter, different temperature levels of heat generated by the solar energy can be instantly used in heating. It avoided the instability of solar energy, reduced the burden of ground source heat extraction, and reflected the relatively significant energy savings as well.